Ferrari is continuing to argue for a relaxation of the so-called engine 'freeze'.
Toto Wolff has admitted tension between Mercedes' title-warring teammates is inevitable over the decisive final five races of 2014.
Toto Wolff: "With five races to go and three points separating Lewis and Nico, it is now a straight fight between the two of them and each will be looking to gain the first advantage in Suzuka, one of the best driver's circuits in the sport."
Nico Rosberg was forced to retire in a tense race at the spectacular Marina Bay Street Circuit.
Lewis Hamilton took pole by just seven thousandths of a second from team-mate Nico Rosberg.
Lewis Hamilton sets the fastest time of the day during the second session.
Pascal Wehrlein's 2014 has had both its dizzying highs and its appalling lows.
Round 14 of the 2014 Formula One World Championship brings Mercedes to the Marina Bay Circuit for the Singapore GP.
Kvyat uses different strategy to nearly claim points finish from the back of the grid.
Mercedes achieved the team's seventh 1-2 finish.
One pit stop expected in a sprint race tomorrow with low wear and degradation.
Nico Rosberg completes the front row for the team.
Toto Wolff: "We need to work hard tonight to make sure the performance is at our full potential - and that our reliability is bullet proof."
The fastest F1 circuit held Round 13 of the 2014 Formula One World Championship on this weekend.
Lewis Hamilton retired in the latter stages of a dramatic race at the Circuit de Spa-Francorchamps.
Nico Rosberg setting the pace in the first practice session and Lewis Hamilton topping the second at the Circuit de Spa-Francorchamps.